A4092: A modern successor to the A4091 SCSI-2 controller

The term "A4092" has already come up in connection with the software package for the open-source recreation of Commodore's Fast-SCSI2 controller A4091. Now, this equally open-source, completely redesigned Zorro III SCSI-2 controller for the Amiga 4000 and Amiga 3000 is officially unveiled at the title link with the promise: "Everything you need, nothing you don’t."

https://www.amiga-news.de/en/news/AN-2026-04-00005-EN.html

#Amiga #hardware #retrocomputing #SCSI #A4092

amiga-news.de - A4092: A modern successor to the A4091 SCSI-2 controller

Last update for couple of days, checked the software and we seem to be missing most packages. I have now downloaded the most recent software release so let's see if we can upgrade.

Problem with upgrading is, you need a SCSI CD-Rom drive

#cdrom #scsi #software #hpux

Image created, no lost or bad blocks, we have an image we can always recover now

#ddrescue #hpux #scsi

The PCI to SCSi adapter has also arrived and everything is connected together ready to go into the computer.

The drive is a #seagate medalist ST34520N, its 5GB in size.

#adaptect #scsi #pci

@wyatt agreed.
It's just that I don't have that many such components around and I'd rather try to get something more compact going to i.e. get a #QuadFlop ¹ or using some #ISA / #PCI - #SCSI controller for archival/data recovery use as #USB to SCSI Adapters are virtually nonexistant²

  • And projects like the #Wee86 / #WeeCee / #PixelX86 are way too restrictive for such purposes.
    • Besides I kinda need a testbench for testing i486SX builds of @OS1337
New 4 Drive Floppy Controller - TexElec Quad-Flop

YouTube

Turns out its not #IDE, its not even 40 pins, the analyzer uses a 3.5 inch 50-pin #SCSI connector.

Possible options, SCSI to USB converter with the necessary 3.5 inch 50-pin to high density 50 pin adapter. This option probably is not going to work very well.

Alternatively we buy a second hand PCI (not PCIe) SCSI adapter and use that on an old machine to make an image.

For this last solution I have high hopes. Currently looking at an Adaptec AHA-2940 or 2904

SCSI-Emulation: BlueSCSI V2026.03.01

BlueSCSI is a SCSI hardware replacement for the Amiga and other retro systems. It emulates SCSI drives such as hard disks or optical drives using the Pi Pico PR2040 and Pico 2 RP2350. The recently released firmware version 2026.03.01-RC2 for BlueSCSI v2 and Ultra/Ultra Wide includes bug fixes and enhancements, and in particular significant optimizations for WLAN speed and AmigaNET support.

https://www.amiga-news.de/en/news/AN-2026-03-00019-EN.html

#BlueSCSI #SCSI #AmigaNET #WLAN

amiga-news.de - SCSI-Emulation: BlueSCSI V2026.03.01

Here are the reconstructed schematics of the #apple2 #SCSI Rev.C card:
https://codeberg.org/hkzlab/AppleII_SCSI_RevC_schematics

These will be the base for a clone I'll work on soon (SMD based, someone else is taking care of the THT).

Given that everything you see inside the repo is taken from the community, I am giving it back, in case someone else wants to have fun with the schematic and use it as a base for some #retrocomputing project.

Just be aware that I do NOT own a card, so I could not check every connection personally. Hopefully it's correct.

AppleII_SCSI_RevC_schematics

Recreated schematics for the Apple II SCSI Rev.C card

Codeberg.org

EDIT: It has found a home.

Free to a good home: A SCSI ribbon cable with connectors for 6 drives. It has 68-pin adaptors on two and a terminator at the end.  

#Macintosh #FreeToAGoodHome #RetroComputing #VintageComputers #SCSI #PowerMac